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Finding the Fourth Proportional to 2,232.30, 3,348.84 and 771.87

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Solution

The fourth proportional to 2,232.30, 3,348.84 and 771.87 is: 1,157.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.30 : 3,348.84 = 771.87 : x
  2. Step 2: Convert to fraction form
    2,232.30/3,348.84 = 771.87/x
  3. Step 3: Cross multiply
    2,232.30x = 3,348.84 × 771.87
  4. Step 4: Simplify right side
    2,232.30x = 2,584,869.13
  5. Step 5: Solve for x
    x = 2,584,869.13/2,232.30
  6. Step 6: Final answer
    x = 1,157.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.